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Rails update_attributes without save?
Is there an alternative to update_attributes that does not save the record?
4 Answers
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CSS: how to position element in lower right?
I am trying to position the text element "Bet 5 days ago" in the lower right-hand corner. How can I accomplish this? And, more importantly, please explain so I can conquer CSS!
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How does std::move() transfer values into RValues?
I just found myself not fully understanding the logic of std::move() .
2 Answers
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Do checkbox inputs only post data if they're checked?
Is it standard behaviour for browsers to only send the checkbox input value data if it is checked upon form submission?
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How to calculate moving average without keeping the count and data-total?
I am trying to find a way to calculate a moving cumulative average without storing the count and total data that is received so far.
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How can I select the first day of a month in SQL?
I just need to select the first day of the month of a given datetime variable.
30 Answers
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How to go back to lines edited before the last one in Vim?
I'm aware of the `. command that goes to last edited line. Is there a way to go further in the editing history? I often accidentally insert something while browsing the file, undo, but then `. will not bring me where I want anymore.
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What exactly does the Access-Control-Allow-Credentials header do?
I'm trying to understand how to use CORS and am confused about what the Access-Control-Allow-Credentials header does.
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Twitter Bootstrap - how to center elements horizontally or vertically
is there any way to center html elements vertically or horizontally inside the main parents?
12 Answers
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Show loading image while $.ajax is performed
I am just wondering how to show an image that indicates that the async request is running. I use the following code to perform a async request:
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